WHO has published Accelerating WHO emergency response to Ebola outbreak: Contact tracing. Excerpt:
It was humid, muddy and raining when WHO staff approached a compound in heavily populated New Kru Town, outside Monrovia, Liberia to look for people who have had contact with people infected with Ebola.
A WHO technical adviser from Rwanda, sent in to help the zone coordinator, spoke to a woman who had cared for an Ebola patient. She understood the need to be monitored for the disease, but another man with whom the team talked denied knowing anyone with Ebola and refused further contact with the team.
As new cases of Ebola virus disease continue to be reported by the Ministries of Health in Guinea, Liberia, and Sierra Leone, WHO’s response is accelerating in vital areas crucial to control the outbreak.
People in close contact with Ebola patients
One of the most important of these areas is contact tracing, or finding persons who have been in close contact with persons infected with Ebola, monitoring them to see if they have become infected, and providing them with education and support.
The response by WHO and its partners to stop transmission of the Ebola virus is accelerating by scaling up effective outbreak control measures and preventing its further spread, as urged by Health Ministers from 11 West African countries in a new strategy approved in July.
Health authorities are concerned because Ebola continues to be transmitted in communities and in health-care settings, and it has appeared in cities as well as rural and border areas.